QuidelOrtho (NASDAQ:QDEL) is a global diagnostics company formed through the merger of Quidel Corporation and Ortho Clinical Diagnostics. The combined entity develops, manufactures and markets a broad portfolio of rapid and high-throughput diagnostic solutions across immunoassay, molecular diagnostics and transfusion medicine. Its offerings span point-of-care platforms for acute care testing as well as large-scale automated systems designed for clinical laboratories and blood banks.
The company’s product range includes rapid antigen and antibody tests for infectious diseases, molecular assays utilizing nucleic acid amplification technology, and integrated immunodiagnostic analyzers. Notable platforms include the Sofia fluorescence immunoassay system, the Solana molecular diagnostics platform and the VITROS® family of high-volume immunoassay instruments. In transfusion diagnostics, QuidelOrtho provides blood-typing, antibody screening and donor management solutions aimed at improving safety and efficiency in blood centers and hospital transfusion services.
QuidelOrtho brings together decades of diagnostic expertise. Quidel was founded in 1979 with a focus on rapid immunoassays, while Ortho Clinical Diagnostics traces its heritage to the diagnostic divisions of Johnson & Johnson dating back to the mid-20th century. In late 2022, the two businesses combined to expand their global reach, enhance R&D capabilities and streamline manufacturing operations. The company is headquartered in San Diego, California, with additional research, development and production facilities across North America, Europe and Asia.
Led by President and Chief Executive Officer Douglas Bryant, QuidelOrtho serves hospitals, reference laboratories, physician offices, public health agencies and blood banks worldwide. The company emphasizes innovation through ongoing investment in assay development, digital connectivity and data analytics to enable faster decision-making and support patient care initiatives across diverse healthcare settings.
